and i think the statement yesterday from the f.b.i. special agent in charge of the investigation was really quite telling that he found this activity troublesome and led to an enormous amount of unhelpful speculation and misidentifications. >> suarez: in this case, two young fellows, salah adean and his friend yassin were identified on the covers of nationally published newspapers as major suspects here. will oremus, walk us through some of the blind alleys that this kind of investigative technique walked the investigation down. >> so, over the course of the past few days on reddit there has been one potential suspect after another who rises to prominence on the site and everyone starts delving into a certain photo to see if that could be the person. the format of reddit is such that anyone can post anything but everyone gets to vote on which post rises to the top of the page. the positive outcome of that is a that if there's something that's posted that valid, that's interesting that will go to the top of the page. everybody will see